APA aipamena

Catibog, E., Lainez, L., & Regalado, M. (1999). A Systems study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering.

Chicago Style aipamena

Catibog, Eliza, Leon Lainez, and Mitch Regalado. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. Diliman, Quezon City: College of Engineering, 1999.

MLA aipamena

Catibog, Eliza, et al. A Systems Study of Jose S. Galang and Sons Concrete Products, Inc. College of Engineering, 1999.